Grain separator



Malch 1941- L. VANDOMELEN ETAL. 2,233,824

GRAIN SEPARATOR I Filed Oct. 4, 1939 4 Sheets-Sheet 1 Inventors G if;75/? 50? 6 E. Van flame/e March 4, 1941.

L. VAN DOMELEN EI'AL GRAIN SEPARATOR Filed Oct. 4, 1939 4 Sheets-Sheet 2Inventorg vi y March L. VAN DOMELEN srm. 2,233,824

' GRAIN SEPARATOR Filed Oct. 4, 1939 4 Sheets-Sheet 3 AttorneysInventor;

March 1941- L. VAN DOMELEN E'I'AL 2,233,8 4

GRAIN SEPARATOR 4 Sheets-Sheet 4 Filed Oct. 4. 1939 Inventors AttorneysPatented Mar. 4, 1941 UNITED STATES GRAIN SEPARATOR Leonard Van Domelenand Raymond Van Domelen, Banks, Oreg.

Application October 4, 1939, Serial No. 297,929

1 Claim.

This invention relates to grain separators, and has for the primaryobject the provision of a device of this character which is in the formof an attachment easily adaptable to an elevator of a grain thresher orsimilar device for receiving therefrom grains of different kinds andwhich will efficiently and economically separate the different grainsfrom each other and deliver the separated grains for bagging and othermodes v of collection and which is driven by power derived from theelevator and may be manufactured and sold at a low cost.

With these and other objects in view, the invention consists in certainnovel features of con- 'struction, combination and arrangement of partsto be hereinafter more fully described and claimed.

For a complete understanding of our invention, reference is to be had tothe following description and accompanying drawings, in

which I Figure l is a bottom plan view partly in section illustrating agrain separator constructed in accordance with our invention and showingthe application thereof to an elevator.

Figure 2 is a vertical sectional View illustrating the device.

Figure 3 is a sectional view taken on the line 3--3 of Figure 2.

Figure 4 is a transverse sectional view taken on the line 4-4 of Figure2.

Figure 5 is a fragmentary plan View illustrating a riddle cleaner.

Figure 6 is a fragmentary end elevation illustrating a portion of oneend of the riddle and a portion of one end of a pan.

Referring in detail to the drawings, the numeral 5 indicates a housingof elongated formation and gradually increasing in size toward one endand the largest end thereof is provided with a grain receiving opening 6adjacent the top wall. The grain receiving opening is arranged incommunication with a discharge opening of a grain elevator l which mayform a part of a threshing machine or similar device (not shown). Theelevator 1 includes the usual endless conveyor 8 having buckets athereon which empty as they reach the upper end of the elevator anddeposit the grain for passing into the housing 5 or into an inclinedplatform ill provided in the housing and projecting slightly into theelevator.

Extending from the top wall of the housing adjacent the opening 6 andabove the platform is a deflector plate II to deflect grain on theplatform as it is discharged by the buckets of the elevator and alsoacts to distribute the grain over said platform so that on leaving thelatter it will fall onto riddle t2 arranged in the easing 5 forreciprocation and disposed at a slight 5 inclination. The riddleinclines downwardly from the receiving end of the housing and ispivotally supported by links it pivoted on walls of the housing and tothe riddle. Carried by and underlying the riddle is a pan M to receivegrain 10 which passes through the riddle and inclines in a directionopposite to the inclination of said riddle and discharges into a hopperI5 located at one end of the housing. The hopper is equipped withdiverging discharge spouts l6. 15

At the opposite end of the housing is a hopper H to receive grain whichpasses from the lower end of the riddle and is provided with divergingdischarge spouts [8.

The riddle 12 consists of a frame i9 closed by 20 a screen 20, the meshof which may be of any desired gauge depending on the character of seedsthat are to be separated. The uppermost end of the frame 19 hasconnecting links 2! piv-- oted thereto which extend through slots 23 in25 the end wall of the housing 5 and are journaled on cranks 24 of acrank shaft 25 supported by journals 26 at one end of said housing 5.The crank shaft has secured thereto a sprocket gear 27 over which istrained an endless sprocket 30 chain 28 which in turn passes about asprocket gear 29 secured on the uppermost shaft 3i) of the conveyor 8 ofthe elevator i, so that when the conveyor of the elevator is inoperation the ridle 12 will receive a reciprocal motion. 35

A clearer frame 3! is arranged directly under the riddle frame 59 andspaced therefrom and carries relatively spaced transversely arrangedsupporting bars 32 on which are secured strips of fibre such as belting,felt or any other suit- 40 able material. The strips are indicated bythe character 33 and the upper edges thereof rub against the screen 2i]for the purpose of maintaining the screen clean during the use of thedevice. The screen 259 rubs over the cleaning ele- 4 ments 33 during thereciprocation of the riddle and as the cleaning construction of thedevice is of skeleton formation seeds passing through the screen 26 mayreadily pass through the cleaner onto the bottom Wall of the casing for50 gravitation into the hopper if.

It is preferable that one of the side walls of the housing 5 be equippedwith'a door at which may be readily opened to give inspection to theriddle while in operation or to permit the easy removal of the riddle ofthe housing when desiring to change for another wherein the screen willbe of a different gauge mesh.

In operation, the different kinds of grain discharged from the elevator1 are received on the platform Ill and gravitate therefrom onto theriddle, the larger seeds passing off the lower end of the riddle intothe hopper I 1 while the smaller grain or seeds pass through the screenonto the pan l4 and gravitate therefrom into the hopper l5, therebybringing about a quick and efficient separation of grain or seeds ofdifferent kinds.

It is a common practice to grow within a field difierent kinds of seedsor grain such as oats and peas and to thresh them simultaneously. Whenthis threshing operation is carried on the present invention orseparator as heretofore described and shown in the drawings .Wlillefficiently separate the peas from the oats, the peas passing into thehopper I1 while the oats pass into the hopper l5. The different kinds ofgrains or seeds from their respective hoppers can be easily bagged orotherwise collected from the chutes of said hoppers.

It is believed that the foregoing description, when taken in connectionwith the drawings will fully set forth the construction and advane tagesof this invention to those skilled in the art to which such a devicerelates so that further detailed description will not be required.

What we claim is:

In a grain separator, a housing having the bottom thereof open andprovided with a grain receiving opening in one end thereof and adjacentthe top Wall of said housing to admit grain from a thresher, an inclinedplatform supported by said housing and extending inwardly thereof fromthe grain receiving opening, hoppers mounted in the open portion of thehousing and each including discharge means, a pan slidably supported bythe hoppers and inclined toward one of said hoppers at one end thereofthe pan and secured on the housing.

LEONARD VAN DOMELEN. RAYMOND VAN DOMELEN.

